Nicholas Hauenstein provides an overview of the Breakpoint Generator extension, which automatically generates breakpoints for all the public entry points in your solution. The extension was created by Jakob Ehn and Utkarsh Shigihalli.
Anthony Borton provides an overview of the Countdown Widget extension, and walks through how you can use it. The extension was created by Mathias Olausson and Wouter de Kort. It counts down to a configurable moment in time..
Anthony Borton provides an overview of the Sample Data extension, and walks through how you can use it. The extension was created by Mattias Sköld, Niel Zeeman, Hassan Fadili and Igor Shcheglovitov. It creates sample data in your Team Services project.
Hosam Kamel walks you through the AAD OAuth2 provider for SonarQube, which enables Azure Active Directory (AAD) users to automatically be sign up (a login is created if they don't have one already) and authenticated on a SonarQube server.